Understanding the bend allowance and consequently the bend deduction of a part is a crucial first step to understanding how sheet metal parts are fabricated.
Bend table sheet metal.
When the sheet metal is put through the process of bending the metal around the bend is deformed and stretched.
Use the minimum bend dimension values in the charts below for your minimum closeness of cutout to a bend.
We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts.
The second important number when creating sheet metal designs is the bend radius value.
When the sheet metal is put through the process of bending the metal around the bend is deformed and stretched.
0 060 crs 2 000 2 000 r0 031 aluminum 90 deg.
It is possible to choose other bends if you require but additional lead time and tooling charges may apply.
A section view of a typical punch and die set used to create sheet metal bends.
Sheet metal bend radius.
Each column specifies a bend radius.
Bend tables created as a text file support the following.
The diagram shows one such mechanism.
To create your own bend table copy and edit this bend table with any text editor.
Geometry of tooling imposes a minimum bend dimension.
Refer to the chart for values for folder as well as various press brake tooling combinations.
The problem with a solidworks sheet metal bend table is that it can only control the bend allowance bend deduction or k factor but the thickness and radius is still free to be changed manually.
Exemple 1 for metal sheet bending tables.
A bend table is a table of bend deductions arranged in rows and columns.
Each row in a bend table specifies a bend angle.
Bend allowance mild sheet steel 90 degree bend allowance bend allowance chart example flat size 2 2 095 3 905.
Since gauge tables were introduced all the parameters can be controlled base on the drop down selection which makes life much easier.
You can generate flat patterns by unfolding sheet metal features using a uniformly applied.
We have a metal sheet of 3 m m thickness in iron with a hardness of 42 48kg mm2 if we go to the top of the table we see the thicknesses in brown we look at the 3 thickness of the sheet and we go down to the blue box we see a value of 240 this is in kn mm2 and if we take a 0 it will be in ton.
The bend radius of a sheet metal design will be based on the wall thickness of the part and the tooling that is available in house.
All bend table types bend deduction bend allowance and k factor.
To use the tables below.
Understanding the bend deduction and consequently the bend allowance of a part is a crucial first step to understanding how sheet metal parts are fabricated.
